Gaya APA
Rothke, B.
(2005).
Computer Security : 20 Things Every Employee Should Know
(
Ed. 2.--)
.
America:
McGraw-Hill.
Gaya MLA
Rothke, Ben.
"Computer Security : 20 Things Every Employee Should Know".
Ed. 2.--
America:
McGraw-Hill,
2005.
Buku.